Robert Strombachs defeated Simon Anthony Ivanov 6-3 6-1 in the M15 Idanha-A-Nova 1 round of 32 on hard. The upset overturned the form book — Simon Anthony Ivanov came in leading the head-to-head 1–0. Robert Strombachs claimed a first win over Simon Anthony Ivanov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-06-27 | M15 Setubal 1 | R16 | hard | Simon Anthony Ivanov | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.